Defensive Cyberspace Operations SME

Infinity Systems Engineering; Colorado Springs (CO); On-site; USD 100,000 - 150,000; Full time

Job summary

Infinity Systems Engineering in Colorado Springs seeks a Defensive Cyberspace Operations Subject Matter Expert to design, implement, and maintain security measures protecting IT infrastructure, networks, and data.

You will monitor threats, respond to incidents, ensure compliance, and work cross-functionally to strengthen the organization’s security posture. Requires 3+ years in cybersecurity, a security clearance, and experience with SIEM, firewalls, IDS/IPS, and GPS security tools.

Qualifications

• Bachelor's degree in Cybersecurity, computer science, information technology or related field.
• 3+ years of experience in cybersecurity, network security, or related fields.
• Secret clearance with ability to attain Top Secret/SCI.
• Experience with security tools: SIEM, firewalls, IDS/IPS, endpoint protection.
• Strong knowledge of cybersecurity principles, frameworks, and best practices.
• Proficiency in GPS security tools, firewalls, and network security protocols.
• Strong problem-solving, analytical, and communication skills.
• Strong interpersonal and teamworking skills.
• Ability to work in a 24/7 crew environment with rotating shifts.
• Preferred: GPS systems experience; DoDM 8140.03 certifications: Technical Support Specialist, Cyber Defense Analyst, Cyber Defense Incident Responder, Splunk Power User.

Responsibilities

• Threat Monitoring & Incident Response: Monitor security events and respond to threats using SIEM tools.
• Compliance & Policy Management: Ensure adherence to cybersecurity policies, frameworks, and industry regulations.
• Security Awareness & Best Practices: Provide security training and awareness programs for employees.
• Support development, modification, and sustainment of cybersecurity monitor capabilities.
• Conduct root cause analysis and implement corrective actions.
• Provide technical assistance during cyber incident handling until the event is mitigated, isolated, or risk removed.
• Provide recommendations to improve cyber-attack mitigation and actions, updates, or changes to reduce cybersecurity false positives.
• Assist audits and security assessments to maintain compliance.
• Develop and maintain security documentation, including policies and procedures.

Skills

SIEM

Firewalls

IDS/IPS

Endpoint protection

Cybersecurity principles

GPS security tools

Network security protocols

Communication skills

24/7 crew rotations

Education

Bachelor's degree in Cybersecurity, computer science, information technology or related field

Tools

Splunk Power User

GPS systems

Job description

Infinity's niche in the aerospace and defense industry is specialized solutions that help bridge the gap between space and ground. This is no small task, and we owe our success to our team who help us fulfill our mission; to match people with their legacies for betterment of the world. There is always a place at Infinity for a motivated, capable individual seeking a career to better the world. We prioritize supporting our team through exceptional benefits, work-life balance, and structured career development. At Infinity, WE ARE MORE -- now, come be more with us!

Job Summary

The Defensive Cyberspace Operations Subject Matter Expert is responsible for designing, implementing, and maintaining security measures to protect the organization's IT infrastructure, networks, and data. This role involves assessing vulnerabilities, responding to security incidents, and ensuring compliance with industry standards and best practices. The ideal candidate has a strong technical background in cybersecurity, a proactive mindset, and the ability to work cross‑functionally to enhance the organization's security posture.

Key Responsibilities

• Threat Monitoring & Incident Response:
  • Monitor security events and respond to threats using SIEM tools.
  • Investigate and remediate security incidents, vulnerabilities, and breaches.
  • Conduct root cause analysis and implement corrective actions.
  • Provide recommendations to improve cyber‑attack mitigation and actions, updates, or changes to reduce cybersecurity false positives.
  • Provide technical assistance during cyber incident handling until the event is mitigated, isolated, or risk removed.
• Compliance & Policy Management:
  • Ensure adherence to cybersecurity policies, frameworks, and industry regulations.
  • Assist with audits and security assessments to maintain compliance.
  • Develop and maintain security documentation, including policies and procedures.
  • Maintain and standardize GPS cybersecurity operational documentation.
• Security Awareness & Best Practices:
  • Provide security training and awareness programs for employees.
  • Stay up to date on emerging threats, vulnerabilities, and industry trends.
  • Recommend security enhancements to improve organizational resilience.
  • Support development, modification, and sustainment of cybersecurity monitor capabilities.

Qualifications

• Education: Bachelor's degree in Cybersecurity, computer science, information technology or related field, or combination of experience and education.
• Experience: 3+ years of experience in cybersecurity, network security, or related fields.
• Clearance Requirement: Secret with ability to attain Top Secret/SCI.
• Required Skills:
  • Experience with security tools such as SIEM, firewalls, IDS/IPS, and endpoint protection.
  • Strong knowledge of cybersecurity principles, frameworks, and best practices.
  • Proficiency in GPS security tools, firewalls, and network security protocols.
  • Strong problem‑solving, analytical, and communication skills.
  • Strong interpersonal and teamworking skills.
  • Strong verbal and written communication skills.
  • Ability to work in a 24/7 crew environment, with ability to work different rotations as needed.
• Preferred Skills:
  • Working experience with GPS systems.
  • Industry certification in accordance with DoDM 8140.03 in the advanced level of:
    • Technical Support Specialist work role
    • Cyber Defense Analyst work role
    • Cyber Defense Incident Responder work role
    • Splunk Power User

Work Environment / Physical Requirements

Primarily office-based with occasional travel as needed. Ability to work in a high‑paced environment and respond to security.